Problem installing CosmoABC on python 3.8.5

[Vokturz]

When I'm trying to install CosmoABC, it appears the following error

  ERROR: Command errored out with exit status 1:
   command: /home/vnavarro/anaconda3/bin/python3 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setup.py'"'"'; __file__='"'"'/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-fqzhv3dt
       cwd: /tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/
  Complete output (15 lines):
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setuptools/__init__.py", line 2, in <module>
      from setuptools.extension import Extension, Library
    File "/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setuptools/extension.py", line 5, in <module>
      from setuptools.dist import _get_unpatched
    File "/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setuptools/dist.py", line 7, in <module>
      from setuptools.command.install import install
    File "/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setuptools/command/__init__.py", line 8, in <module>
      from setuptools.command import install_scripts
    File "/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/setuptools/command/install_scripts.py", line 3, in <module>
      from pkg_resources import Distribution, PathMetadata, ensure_directory
    File "/tmp/pip-install-1dm0o2ph/distribute_535667512149458c8cbea3cedc754e55/pkg_resources.py", line 1518, in <module>
      register_loader_type(importlib_bootstrap.SourceFileLoader, DefaultProvider)
  AttributeError: module 'importlib._bootstrap' has no attribute 'SourceFileLoader'

This happens for package distribute version 0.7.3

If I try with lower versions other error appears:

ERROR: Command errored out with exit status 1:
   command: /home/vnavarro/anaconda3/bin/python3 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-1dm0o2ph/distribute_30a6e85c0437451abc3bfdc427e944ec/setup.py'"'"'; __file__='"'"'/tmp/pip-install-1dm0o2ph/distribute_30a6e85c0437451abc3bfdc427e944ec/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-ksbjoab2
       cwd: /tmp/pip-install-1dm0o2ph/distribute_30a6e85c0437451abc3bfdc427e944ec/
  Complete output (10 lines):
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-install-1dm0o2ph/distribute_30a6e85c0437451abc3bfdc427e944ec/setuptools/__init__.py", line 2, in <module>
      from setuptools.extension import Extension, Library
    File "/tmp/pip-install-1dm0o2ph/distribute_30a6e85c0437451abc3bfdc427e944ec/setuptools/extension.py", line 5, in <module>
      from setuptools.dist import _get_unpatched
    File "/tmp/pip-install-1dm0o2ph/distribute_30a6e85c0437451abc3bfdc427e944ec/setuptools/dist.py", line 103
      except ValueError, e:
                       ^
  SyntaxError: invalid syntax

I manage to resolve this issue cloning the repository, removing distribute from install_requires inside setup.py file and then running pip install . for the installation .

Anyway, another error appears when trying to run the toy_model from the examples:

Traceback (most recent call last):

  File "/home/vnavarro/anaconda3/bin/run_ABC.py", line 108, in <module>
    main( args )
  File "/home/vnavarro/anaconda3/bin/run_ABC.py", line 44, in main
    user_input = read_input(args.input)
  File "/home/vnavarro/anaconda3/lib/python3.8/site-packages/cosmoabc/ABC_functions.py", line 77, in read_input
    from distances import distance_GRBF
ModuleNotFoundError: No module named 'distances'

This error is resolved changing line 77 from ABC_functions.py to from .distances import distance_GRBF